zh/builder/src/echarts3/chart/pie/PieSeries.js

import * as echarts from '../../echarts';
import List from '../../data/List';
import * as zrUtil from 'zrender/src/core/util';
import * as modelUtil from '../../util/model';
import { getPercentWithPrecision } from '../../util/number';
import completeDimensions from '../../data/helper/completeDimensions';
import dataSelectableMixin from '../../component/helper/selectableMixin';
var PieSeries = echarts.extendSeriesModel({
  type: 'series.pie',
  // Overwrite
  init: function (option) {
    PieSeries.superApply(this, 'init', arguments); // Enable legend selection for each data item
    // Use a function instead of direct access because data reference may changed

    this.legendDataProvider = function () {
      return this.getRawData();
    };

    this.updateSelectedMap(option.data);

    this._defaultLabelLine(option);
  },
  // Overwrite
  mergeOption: function (newOption) {
    PieSeries.superCall(this, 'mergeOption', newOption);
    this.updateSelectedMap(this.option.data);
  },
  getInitialData: function (option, ecModel) {
    var dimensions = completeDimensions(['value'], option.data);
    var list = new List(dimensions, this);
    list.initData(option.data);
    return list;
  },
  // Overwrite
  getDataParams: function (dataIndex) {
    var data = this.getData();
    var params = PieSeries.superCall(this, 'getDataParams', dataIndex); // FIXME toFixed?

    var valueList = [];
    data.each('value', function (value) {
      valueList.push(value);
    });
    params.percent = getPercentWithPrecision(valueList, dataIndex, data.hostModel.get('percentPrecision'));
    params.$vars.push('percent');
    return params;
  },
  _defaultLabelLine: function (option) {
    // Extend labelLine emphasis
    modelUtil.defaultEmphasis(option.labelLine, ['show']);
    var labelLineNormalOpt = option.labelLine.normal;
    var labelLineEmphasisOpt = option.labelLine.emphasis; // Not show label line if `label.normal.show = false`

    labelLineNormalOpt.show = labelLineNormalOpt.show && option.label.normal.show;
    labelLineEmphasisOpt.show = labelLineEmphasisOpt.show && option.label.emphasis.show;
  },
  defaultOption: {
    zlevel: 0,
    z: 2,
    legendHoverLink: true,
    hoverAnimation: true,
    // 默认全局居中
    center: ['50%', '50%'],
    radius: [0, '75%'],
    // 默认顺时针
    clockwise: true,
    startAngle: 90,
    // 最小角度改为0
    minAngle: 0,
    // 选中时扇区偏移量
    selectedOffset: 10,
    // 高亮扇区偏移量
    hoverOffset: 10,
    // If use strategy to avoid label overlapping
    avoidLabelOverlap: true,
    // 选择模式，默认关闭，可选single，multiple
    // selectedMode: false,
    // 南丁格尔玫瑰图模式，'radius'（半径） | 'area'（面积）
    // roseType: null,
    percentPrecision: 2,
    // If still show when all data zero.
    stillShowZeroSum: true,
    // cursor: null,
    label: {
      normal: {
        // If rotate around circle
        rotate: false,
        show: true,
        // 'outer', 'inside', 'center'
        position: 'outer' // formatter: 标签文本格式器，同Tooltip.formatter，不支持异步回调
        // 默认使用全局文本样式，详见TEXTSTYLE
        // distance: 当position为inner时有效，为label位置到圆心的距离与圆半径(环状图为内外半径和)的比例系数

      },
      emphasis: {}
    },
    // Enabled when label.normal.position is 'outer'
    labelLine: {
      normal: {
        show: true,
        // 引导线两段中的第一段长度
        length: 15,
        // 引导线两段中的第二段长度
        length2: 15,
        smooth: false,
        lineStyle: {
          // color: 各异,
          width: 1,
          type: 'solid'
        }
      }
    },
    itemStyle: {
      normal: {
        borderWidth: 1
      },
      emphasis: {}
    },
    // Animation type canbe expansion, scale
    animationType: 'expansion',
    animationEasing: 'cubicOut',
    data: []
  }
});
zrUtil.mixin(PieSeries, dataSelectableMixin);
export default PieSeries;